FOX ESS ECS2800 High Voltage Battery User Manual

: August 4, 2024
: FOX-ESS

Table of Contents

FOX ESS ECS2800 High Voltage Battery
Product Usage Instructions
Introduction
Symbols
Safety
Response to Emergency Situations
Product Information
Product Features
CS Features
Installation
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FOX ESS ECS2800 High Voltage Battery

Specifications

Battery Chemistry: Lithium Iron Phosphate
CS Module Dimensions (CS2800): 570380163 mm
CS Module Weight (CS2800): 65 Kg
Communication interfaces: 48/48 24
Normal voltage: -10~55 V
Normal capacity: 57.6 Ah
Normal energy: 2.76 kWh
Battery voltage range: 52.2~66.2 V

Product Usage Instructions

Installation:
Ensure installation is carried out by authorized and qualified technicians only.

Maintenance
Maintenance tasks should only be performed by qualified personnel. Disconnect the equipment before carrying out any maintenance or repair.

Troubleshooting
Refer to the user manual for troubleshooting guidelines. For any complex issues, contact authorized service personnel.

FAQ

Q: Can the battery system be used in areas with high humidity?
A: The system is designed to operate within a specified humidity range, refer to the manual for details.
Q: What is the maximum number of CS modules that can be used with one CM?
A: The system allows for up to 6 CS modules with one CM, but specific models have limitations such as ECS4000 in the US market allowing a max of 4 CS modules.

Use r Manual
In order to prevent improper operation before use, please carefully read this manual

Introduction

The document describes the installation, commissioning, maintenance and troubleshooting of the following high voltage battery listed below.
ECS
Note: ECS = CM+CS
The battery chemistry of these products is Lithium Iron Phosphate. This manual is designed for qualified personnel only. The tasks described in this document should be performed by authorized and qualified technicians only.
After Installation the Installer must explain the user manual to the end user.

Symbols

Safety

Any work on the Batteries should be handled by authorized technicians and hence it is understood that the technicians should familiarize themselves with the contents of this manual before any maintenance or installation is carried out on the system.

Handling

Do not expose battery to open flame.
Do not place the product under direct sunlight.
Do not place the product near flammable materials. It may lead to fire or explosion in case of accident.
Store in a cool and dry place with ample ventilation.
Do not store the product near water sources.
Store the product on a flat surface.
Store the product out of reach of children and animals.
Do not damage the unit by dropping, deforming, impacting, cutting or penetrating with a sharp object. It may cause leakage of electrolyte or fire.
Do not touch any liquid spilled from the product. There is a risk of electric shock or damage to skin.
Always handle the battery wearing the insulated gloves.
Do not step on the product or place any foreign objects on it. This can result in damage.
Do not charge or discharge damaged battery.
Do not store the battery near water sources.

Installation

Do not connect the ECS to inverter conductors or Photo-Voltaic conductors. This will damage the battery and may result in explosion.
After unpacking, please check the product for damages and missing parts.
Make sure that the inverter and battery is completely turned off before commencing installation.
Do not interchange the positive and negative terminals of the battery.
Ensure that there is no short circuit of the terminals or with any external device.
Do not exceed the battery voltage rating of the inverter.
Do not connect the battery to any incompatible inverter.
Do not connect different battery types together.
Please ensure that all the batteries are grounded properly.
Do not open the battery to repair or disassemble. Only Fox ESS is allowed to carry out any such repairs.
In case of fire, use only dry powder fire extinguisher. Liquid extinguishers should not be used.
Do not install the battery near water sources or places where the battery can get wet.
Install the battery away from children or pets.
Do not use battery in high static environment where the protection device might be damaged.
Do not install with other batteries or cells.
Please ensure on installation site that the deviation of voltages between new batteries and every single present battery is less than 0.5V.
Please ensure the new batteries mounted on-site comply to the warranty scope or have ever been re-charged within 5 months; on top of that, please make sure the SOC of present battery system onsite is 50%±5%.

Response to Emergency Situations

The batteries comprise of multiple batteries connected in series. It is designed to prevent hazards or failures. However, Fox ESS cannot guarantee their absolute safety.
Under exposure to the internal materials of the battery the following recommendations should be carried out by the user.

If there has been inhalation, please leave the contaminated area immediately and seek medical attention.
If there has been contact with eyes, rinse the eyes with running water for 15 minutes and seek medical attention immediately.
If there has been contact with the skin, wash the contacted area with soap thoroughly and seek medical attention immediately.
If there has been ingestion, induce vomiting and seek medical attention.

Fire Situation
In situations where the battery is on fire, if it is safe to do so, disconnect the battery pack by turn off the circuit breaker to shut off the power to the system. Use FM-200 or Co2 fire extinguisher for the battery and an ABC fire extinguisher for the other parts of the system.
Under any fire situation, please evacuate the people from the building immediately before trying to extinguish it.
Water Situation
The battery modules are not water resistant. Hence care should be taken not to get it wet. If you find the battery completely or partially submerged in water do not try to open. Contact an authorized personnel or Fox ESS for further instructions.

Product Information

CS is the battery module, and CM includes system controller and battery module;
CM contains the controller of the entire system, so each system must have one CM;
Our system consists of at least 1 CM+1 CS and up to 1 CM+6 CS.
Only ECS4000 can be used in the US market and the max battery system consists of 1CM+4CS. 5.1 ECS2800 Specifications

CS2800 Specifications

Specifications for CS

Model NO.| CS2800
Max. charge/discharge current (A)| 48
Operating temperature (°C)| -10~55
Storage temperature (°C)| -10~35
Humidity (%)| 5~95
Normal voltage (V)| 57.6
Normal capacity (Ah)| 48
Normal energy (kWh)| 2.76
Battery voltage range (V)| 52.2~66.2
Max. Continuous discharge/charge current (A)| 48/48
(CC-CV) Standard charging current (A)| 24
Constant current and voltage charging cut-off current (A)| 3
Peak discharge current (60s) (A)| 65
Dimensions (LWH) (mm)| 570380163
Weight (Kg)| 31±1
Communication interfaces| CAN
Specifications for CM

Model NO.| CM2800
Max. charge/discharge current (A)| 48
Operating temperature (°C)| -10~55
Storage temperature (°C)| -10~35
Humidity (%)| 5~95
Normal voltage (V)| 57.6
Normal capacity (Ah)| 48
Normal energy (kWh)| 2.76
Battery voltage range (V)| 52.2~66.2
Max. Continuous discharge/charge current (A)| 48/48
(CC-CV) Standard charging current (A)| 24
Constant current and voltage charging cut-off current (A)| 3
Peak discharge current (60s) (A)| 65
Dimensions (LWH) (mm)| 570380178
Weight (Kg)| 35±1
Communication interfaces| CAN
---|---

CM2800 Specifications
Battery System Specifications for ECS2800

Constant current and constant voltage

charging cut-off current (A)

| ****

3

---|---
Peak discharge Current (60s) (A)| 65
Storage temperature (°C)| -10~35
Operating

Temperature range (°C)

| Charge: 0~55 Discharge: -10~55
Discharge capacity (Ah)| 36@-20±2°C @1C

48@25±2°C @0.5C

48@55±2°C @0.5C

Cycle life| ≥6000 @25°C @ 70%SOH
Ingress protection| IP65
Protective class| Class I
Dimensions (LWH)(mm)

| ****

570380366

| ****

570380494

| ****

570380622

| ****

570380750

| ****

570380878

| ****

5703801006

Weight (kg)| 69.6| 100.1| 130.6| 161.1| 191.6| 222.1
Communication interfaces| CAN
| | Specifications for CS| ****

5.2

ECS2900 Specifications

Battery System Features
The batteries have been fitted with multiple protection systems to ensure the safe operation of the system. Some of the protection system includes:

Inverter interface protection: Over voltage, Over current, External Short Circuit, Reverse Polarity, Ground Fault, Over Temp, In rush current
Battery Protection: Internal Short Circuit, Over voltage, over current, over temp, Under voltage The battery system contains the following Interface to allow it to connect and operate efficiently.

CS Features

interface:

CM Features

DC switch
Power switch, battery charge and discharge circuit switch.
DC OUT +
Connect bat + of inverter.
DC OUT –
Connect bat – of inverter.
POWER switches
System power on switch, press this switch, the system starts to work.

B-Start switches
After power on, press this button for 5s.
BMS Status LED and SOC LED
LED display specific alarm information and battery system power.
Operating status LED
This LED is used to indicate if the battery is operating effectively. A green light on this LED means the battery is ON and operating normally. If the battery is operating failure, a red light on this LED means the battery is operating abnormally.

Installation

Items in the package
Please check if following items are including with the package:

For CS

For CM4000(US only)

No.	Items	No.	Items
C	Mounting screw pack	J	Expansion tube2 & Expansion screw2
D	Fixing bracket	K	Waterproof cover
E	Footstand	L	RJ45
F	Communication cable (BMS-Inverter)	M	Junction box (US only)
G	Grounding cable	N	PLUG*2 (US only)
H	DC output cable	O	Grounding cable (US only)
I	Installation guide	P	DC out cable (US only)

Clearance

Note:Make sure to leave a space of at least 300 mm. A clearance of at least 300 mm must be Ieft around the battery pack for proper cooling.
Note: Make sure that the battery pack is always exposed to the ambient air. The battery pack is cooled by natural convection. If the battery pack is entirely or partially covered or shielded, it may cause the battery pack to stop operating.

Tools
The following tools will be required to install CM and CS.

Installation Steps

Step 1: Install a CS with four footstand (Item E) and place it on the ground and adjust it to the level. After installing the footstand, use a track level bar to confirm the level. Insert the waterproof cover(Item K) into the bottom of the battery and lock it in place with the clip.
Step 2: Place the battery 20mm against the wall.
Note: Please make sure the Operating Status LED is on your left handside when you facing the battery model. ****
Step 3: Stack the batteries one by one.
Step 4: Place the two fixing brackets (Item D) close to the wall and install them on both sides of the battery.
Step 5: Mark the wall through the bracket hole.
Step 6: Punch after removing the CM. Drill holes with electric drill, make sure the holes are at least 50mm deep, and then tighten the expansion tubes (Item J).
Step 7: After stacking CM again, fix the battery on the wall.
Step 8: Fix the mounting screw packs (Item C) on both sides of the battery, the installation is over. Note: Please make sure each system including 1 CM and 1 CS. CS less than 6(1~6) pieces:

For CM4000(US only):
Note: Please make sure each system including 1 CM and 1 CS. CS less than 4(1~4) pieces:

Please refer to the video for the installation of the junction box and the cable gland. For CM4000(US only):

Wiring Steps
A: Connect the inverter to make sure the wiring position is correct, as shown in the figure below.
Note: Inverter wiring refer to the inverter user manual.
For outdoor use,please use item L and proceed as follows

Connection steps:

Step 1: Prepare a standard network cable and cable connector, then insert the network cable through the cable connector.
Step 2: Crimp the cable with a Rj45 plug which is inside of the cable connector. If the usage is indoor, please use item F
Step 3: Insert the cable connector into BMS port at the bottom of inverter and screw it tightly. B: Connect the grounding cable to ensure that all batteries are grounded. Wiring shall be connected in the sequence as shown in below. Note：
Make sure that the power cable connected to the battery is connected vertically and that the vertical length is greater than 30 cm. If the cable is bent close to the terminals, it may cause poor line contact and result in burnt terminals.

System Start up

When the grid connected system is started, the inverter should be turned on first to avoid the current pulse of the inverter increasing to the battery pack.
All installation and operation must comply with local electrical standards.
Check all power cables and communication cables carefully.

Turn on the POWER switch
Turn on DC switch and press the POWER switch, firstly Mater LED will light up once, and then the BMS Status LED will light up for 0.5s,Operating Status LED will light up for 1s at the same time,it means that the system works normally.

Commissioning
The operating status light on the left side of the battery pack shows its working status.

For CS

Green LED	Red LED	Batteries Status
On for 0.5s, Off for 0.5s	On for 0.5s, Off for 0.5s	Runing in boot
On for 0.1s, Off for 0.1s	On for 0.1s, Off for 0.1s	Upgrading
On for 1s, Off for 1s	Off	Normal Working
Off	On for 1s, Off for 1s	Alarm

For CM

Remark:

: LED flash display (on: 0.5s, off: 0.5s)
: LED on display

9. Exclusion
The warranty shall not cover the defects caused by normal wear and tear, inadequate maintenance, handling, storage faulty repair, modifications to the battery or pack by a third party other than Fox ESS or Fox ESS agent, failure to observe the product specification provided herein or improper use or installation, including but not limited to the following.

· Damage during transport or storage.
· Incorrect Installation of battery into pack or maintenance.
· Use of battery pr pack in inappropriate environment.
· Improper, inadequate, or incorrect charge, discharge or production circuit other than stipulated herein.
· Incorrect use or inappropriate use.
· Insufficient ventilation.
· Ignoring applicable safety warnings and instructions.
· Altering or attempted repairs y unauthorized personnel.
· In case of force majeure (ex: lightning, storm, flood, fire, earthquake, etc.).
· There are no warranties-implied or express-other than those stipulated herein. Fox ESS or Fox ESS shall not be liable for any consequential or indirect damages arising or in connection with the product specification, battery or pack.

10. Troubleshooting and Maintenance
10.1 Maintenance

A. Regularly check whether the service environment of the battery meets the requirements, and the installation position should be far away from the heat source.
B. The battery module should be stored in an environment with a temperature range between -20℃-
+ 55℃, and charged regularly according to the table below with no more than 0.5 C(A C-rate is a measure of the rate at which a battery is discharged relative to its maximum capacity.) to the SOC of 50% after a long time of storage.

Storage environment

temperature

| Relative humidity of the

storage environment

| Storage time| SOC
---|---|---|---
Below -20℃| /| Not allowed| /
-20~35℃| 5%~70%| ≤ 6 months| 20%≤SOC≤60%
35~55℃| 5%~70%| ≤ 3 months| 20%≤SOC≤60%
Above 55℃| /| Not allowed| /

NOTICE
Damage to the system due to under voltages

Charge the over-discharged system within seven days when the temperature is above 25℃.
Charge the over-discharged system within seven days when the temperature is below 25℃.

C. Regularly check whether the battery and its supporting terminals, connecting cables and indicator lights are normal.

Troubleshooting
When the red / green LED on the panel is flashing or normally on, it does not mean that the CS is abnormal, it may be just an alarm or protection. Please check the ‘LED status indicators’ in chapter 7 for the detailed faulty definition before any trouble-shooting steps. In general, the alarm indication is normal without manual intervention. When the alarm triggering state is removed, CS will automatically return to normal use.

Problem determination based on the following points

Whether the green light on the power switch is on;
Whether the buzzer in CM on;
Whether the battery system can be communicated with inverter;
Whether the battery can be output voltage or not.

Preliminary determination steps
Battery system cannot work, when DC switch on and POWER on, the LED doesn’t light up or flash, please consider contact the local distributor.

The LED display of CM and CS is normal, but it cannot charge and discharge. Observe the display screen of inverter and there is no SOC. Please check whether the CAN communication between CM to inverter is well connected. If the connection is good, please replace a CAN communication cable. If the SOC is still not visible on the inverter display screen, please contact the local distributor.
After the battery system is powered on, if you can see the alarm information on the LED and inverter display screen at the same time, please contact the local distributor.

The copyright of this manual belongs to FOXESS CO., LTD. Any corporation or individual should not plagiarize, partially or fully copy (including software, etc.), and no reproduction or distribution of it in any form or by any means is permitted. All rights reserved. FOXESS CO., LTD.
Add: No.939, Jinhai Third Road, New Airport Industry Area, Longwan District, Wenzhou, Zhej iang, China
Tel: 0510- 68092998
WWW.FOX-ESS.COM

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